Means for securing wear-protectors of rubber or similar material to horseshoes



' March 7, 1939. O Kj 2,149,535

MEANS FOR SECURING WEAR-PROTECTORS OF RUBBER 0R. SIMILAR MATERIAL TO HORSESHOES Filed Sept. 27, 1957 Patented Mar. 7, 1939 UNITED STATES MEANS FOR SECURING WEAR-PRU-TEGTORS F RUBBER: 0R SIMILAR TO HO-RSES-HOES Ole Miiien, Stockholm, Sweden Application September 27, 1937; Serial No. 165,985 In Sweden Octoben 2, 1936 3 Claims.

The present invention relates to horse-shoes having wear-protectors of rubber or a similar material;

In order to secure such wear-protectors to the horse-shoe it has previously been proposed, amongst others, to use screw connections having a cylindrical head sunk into the wear-protector material. However, it has been proved that connections of this type are not capable of'effectively retaining the wear-protector on the horse-shoe, which depends simply on this that the tightening pressure on the screw'threads is directly counteracted' by and, to the greater part, is caused to cease through the action of" the load exerted by l the: horse when walking. The consequence will be that the sorewand, thus, also the wear-protector gets loose and; possibly, may fall off. Even if this would not occur, the wear-protector will beturned during the walk of the horse and will take up incorrect positions with relation to the horse-shoe, resulting in that the means as a wholewill be useless.

It is true, it has been proposed. in order to increase the pressure of the threads, to provide the screw with a partly conical axial bore and also withan axial slit at one place of the circumference and to force acorresponding conical pin into said bore in order thereby to perform a radial expansion of the screw. Apart from the fact that such an arrangement is complicated and expensive, it has not increased the retaining capability of the screw to any degree worth mentioning.

A further drawback in means of the above mentioned type consists in that the relatively large heads of the screws encroach upon the wear-protector, particularly in the transverse direction of the horseshoe iron, whereby breakings easily occur and the wear-protector gets loose from the horseshoe.

It has also been proposed to secure wearprotectors to horse-shoes by means of conical pinshaving suitable heads, said pins being entered through suitable holes in the wear-protector and driven into conical holes in the horseshoe. The pressure exerted on such wedge members by the horse during the walk may, it is true, be supposed to have a tendency of maintaining and possibly also of increasing the frictional contact between the horse-shoe and the wedge member. However, a supposition for such an action is that the said pressure acts in the axial direction of the wedge member, which, however, during the walk of the horse will never be the case, since, when the horse'puts the hoof on to the ground, forces arise, which are directed obliquely with relation to said axial direction and which, as a consequence, will cause a breaking action on the wedge member, whereby the seat of the said member in the relatively soft horse- 01.. iota-43').

shoe material will bedeformed in a short time,

so that the wedge member and, thus, also. the wear-protector'gets loose from the shoe.

The present invention has for its object to avoid the: above mentioned drawbacks, i'. e. to bring about. an: effective and reliable securing. of wear-protectors to horse-shoes without inade vantageously encroaching upon the wear-protector material-i According to the invention the securing is to be performedby means of one or more wedges having an oblong, for instance rectangular or similarcross-sectional configuration and. which are to be driven in into corresponding holes or apertures. in the horse-shoe, said holes havin their longitudinal axis lying along or substantiah ly along the longitudinal direction of the horses shoe iron. The said wedges may preferably, at the driving in end, be provided with one or more deformable parts, which are deformed at the driving in operation and thereby perform. locking of the-wedge and, as a consequence, of the wear protector to the horse-shoe.

In the annexed drawing one embodiment of an arrangement according to theinvention is shown. Fig. I shows a horse-shoe having rubber wear. protectors applied thereto, viewed from the bot-.. tom side. 2 is a cross-section along the line 22, and Fig. 3 is a cross-section along the linev 3-3 through one of the rear calks of Fig. 1 on an enlarged scale. Fig. 4 is a side view of a holding member to be used for the securing of the wedge to the horse-shoe; Figs. 5 to 8 show on an enlarged scale two embodiments of securing plates, around which the wear-protector material is to be molded, Fig. 5 being a longitudinal section of the plate according to the one embodiment and Fig. 6 a plan view thereof, whereas Fig. 7 is a plan view of the plate according to the second embodiment, and Fig. 8 is a cross-sectional view taken along the line 8-8 in Fig. '7.

In the embodiment shown the horse-shoe is provided with three wear-protectors, i. e. two rear calks .l and 2 and one fore oalk 3. Evidently, if desired, more such protectors or buffers may be used, or a single integral protector covering the whole under side of the shoe may also be used. The securing of the said protectors to the horse-shoe is performed by means of wedges 4 of the construction shown in Figs. 2 and 3, the fore calk 3 having two wedges, and the rear calks I and? having each one wedge;

The securing of the wedge to the horse-shoe is performed by means of .two holding members '5 and 6, Figs. 3 and 4, which are entered into cor! responding apertures in the horse-shoe from the hoof side thereof and form between them a wedge-shaped space, into which the wedge is to be forced in. At its inner end the wedge is provided with two bendable flaps I, which at the forcing in operation are brought into contact with projections 8 of the holding members, Fig. 4, and bent, as visible from Fig. 3, so that the wedge will be eifectively secured to the horseshoe. The wedge is provided with a head 9, which, as apparent from Fig. 3, also is wedgeshaped and adapted to be forced into a corresponding aperture III in the wear-protector 2 (and l and 3, respectively), which, in order to provide place for the parts of the holding members projecting from the horse-shoe, is provided with a recess ll suitable for the said purpose. Embedded into the wear-protector 2 (and I, respectively) and flushing with the side thereof facing the horse-shoe is a securing plate l2 of the kind shown in Figs. 5 and 6. The said plate is provided with a central rectangular opening l3 in order to provide space for the parts of the holding members 5, 6 projecting from the horseshoe, as does the recess ll. Further, at its sides the plate [2 is provided with inwardly bent flaps M in order to obtain a safe fastening in the wearprotector material molded around the plate, and for the same purpose there are made holes I5 at the bent portions proper, in which strings are formed at the molding operation, which connect the rubber masses lying outside and inside the flaps.

As apparent from Fig. 2, the wedge-head 9 projects laterally outside the wadge 4 proper, so that abutments [6 are formed, which are forced against the securing plate I2 at the driving in of the wedge, so that the said plate and consequently also the wear-protector will be effectively secured to the horse-shoe, said securing being facilitated also by means of the bendable flaps 1, as mentioned.

Figs. '7 and 8 show an embodiment of a securing plate I! for the fore calk 3, fastened to the horse-shoe by means of two wedges 4. The said plate is provided, as is the plate I2 according to Figs. 5 and 6, with rectangular openings l3 for providing place for the projecting parts of the holding members. Further, the plate is provided with bent flaps l8 and also with a bowshaped projection I9, around which the wearprotector material is molded. At the bent portions the flaps are provided with holes 20 for the purpose stated above.

By the above described arrangement a wholly reliable fastening of wear-protectors to horseshoes is obtained, in as much as a loosening of the wedge needs not be feared and, further, by the aid of the oblong shape of the wedge a turning of the wear-protector with relation to the horse-shoe cannot occur. To the reliable fastening serve also the embedded securing plates,

What I claim is:

1. Means for securing wear-protectors of rubber or a similar material to horse-shoes, comprising resilient wear-protector body, a securing plate embedded in the resilient body and located at the side of the body adjacent the horse-shoe, at least one Wedge-member penetrating said wear-protector body and adapted to be driven into the horse-shoe, said wedge-member having an oblong cross-section and being placed into the horse-shoe with the longitudinal axis of said cross-section lying substantially along the longitudinal direction of the horse-shoe iron, a head at the outer end of said wedge-member, said head having abutments projecting from the sides of the wedge-member and adapted, when driving said member into the horse-shoe, to come into contact with said securing plate, deformable parts at the inner end of said wedge-member, and means in the horse-shoe for deforming said parts when driving the wedge-member into the horse-shoe.

2. Means for securing wear-protectors of rubber or a similar material to horse-shoes, comprising a resilient wear-protector body, a securing plate embedded in the body andlocated at the side facing the horse-shoe, at least one wedge-member penetrating said wear protector body and adapted to be driven into the horseshoe, said wedge-member having an oblong crossseotion and being placed into the horse-shoe with the longitudinal axis of said cross-section lying substantially along the longitudinal direction of the horse-shoe iron, a head at the outer end of said wedge-member, said head having abutments projecting from the sides of the Wedge-member and adapted, when driving said member into the horse-shoe, to come into contact with said securing plate, deformable parts at the inner end of said wedge-member, and means in the horse-shoe for deforming said parts when driving the wedge-member into the horseshoe, said plate having bent fiaps gripping into the wear-protector material.

3. Means for securing wear-protectors of rubber or a similar material to horse-shoes, comprising a wear-protector body of resilient material, a securing plate embedded in the body and located at the side facing the horse-shoe, at least one wedge-member penetrating said wear-protector body and adapted to be driven into the horse-shoe, said wedge-member having an oblong cross-section and being placed into the horseshoe with the longitudinal axis of said crosssection lying substantially along the longitudinal direction of the horse-shoe iron, a head at the outer end of said wedge-member, said head having abutments projecting from the sides of the wedge-member and adapted, when driving said member into the horse-shoe, to come into contact with said securing plate, deformable parts at the inner end of said wedge-member, and means in the horse-shoe for deforming said parts when driving the wedge-member into the horse-shoe, said plate having bent flaps gripping into the wear-protector material, said flaps having holes, in which at the molding of the wearprotector material around the said securing plate, are formed strands connecting said material at both sides of the said flaps.

OLE MIGEN. 

